WO2011081575A1 - Ступень погружного насоса - Google Patents
Ступень погружного насоса Download PDFInfo
- Publication number
- WO2011081575A1 WO2011081575A1 PCT/RU2010/000805 RU2010000805W WO2011081575A1 WO 2011081575 A1 WO2011081575 A1 WO 2011081575A1 RU 2010000805 W RU2010000805 W RU 2010000805W WO 2011081575 A1 WO2011081575 A1 WO 2011081575A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- rear cover
- stage
- holes
- submersible pump
- cover disk
- Prior art date
Links
- 239000012530 fluid Substances 0.000 claims description 5
- 239000007788 liquid Substances 0.000 abstract description 9
- 239000002245 particle Substances 0.000 description 10
- 239000007787 solid Substances 0.000 description 10
- 238000009825 accumulation Methods 0.000 description 4
- 238000005406 washing Methods 0.000 description 3
- 238000005086 pumping Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/445—Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D1/06—Multi-stage pumps
- F04D1/063—Multi-stage pumps of the vertically split casing type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
- F04D13/10—Units comprising pumps and their driving means the pump being electrically driven for submerged use adapted for use in mining bore holes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/68—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers
- F04D29/688—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers especially adapted for liquid pumps
Definitions
- the invention relates to the field of steps of submersible centrifugal pumps used for pumping liquid media, including those containing oil, and can be used for the extraction of minerals in liquid form, including hydrocarbons from oil wells.
- the disadvantages of the known designs is the lack of structural elements of protection against the accumulation of solid particles in the cavities between rotating and stationary working surfaces.
- the closest analogue of the invention is the submersible pump stage described in patent RU 68613, comprising an impeller including a front and rear cover discs, vanes located between the front and rear cover discs, a sleeve, and a guide apparatus including front and rear cover discs, vanes, located between the front and rear cover discs.
- the disadvantage of this device is that with the accumulation of solid particles in the front pocket, they begin to significantly increase the friction between the rotating parts of the submersible stage pump, which can lead to failure of the electric motor, and also leads to very strong abrasive wear of the cover disk of the impeller.
- the problem to which the invention is directed is to create a simple device design and use this device for various modifications of submersible pumps.
- the steps of a centrifugal or diagonal submersible pump necessarily have such a negative design feature as the cavities between the front and rear cover disks of the impeller and the surfaces of the guide apparatus, which are called the front and rear pockets.
- These structural elements are due to the need to pair the rotating parts of the stage (impeller) with the stationary (guiding device), as well as to minimize the leakage inside the stage.
- the negative effect of these cavities is small, but if liquid with mechanical inclusions, such as sand or proppant, is supplied to the stage inlet, these cavities begin to work as collection traps for solid particles that enter the pockets through gaps between the impeller and the diffuser.
- the technical result achieved by the implementation of the proposed technical solution is to ensure a constant constant washing of the front pocket in order to prevent the accumulation of solid particles in it, which significantly reduces the abrasive wear of the impeller cover disk and significantly prolongs the life of the electric motor.
- the submersible pump stage contains an impeller, including the front and rear cover discs, blades located between the front and rear cover discs, a sleeve, and a guide apparatus that includes the front and rear cover discs, blades located between front and rear cover discs.
- the rear cover disk of the guide vane is equipped with through holes extending in the end surfaces and arranged in a circle, the number of through holes being at least chosen equal to the number of interscapular channels, and the holes are made in such a way as to allow fluid to flow from the front pocket of this stage of the submersible pump into each interscapular channel guide device of the previous stage.
- the number of through holes is a multiple of the number of interscapular channels.
- the diameter of the holes is selected in the range of 1-1.0 mm.
- the diameter of the holes is selected in the range of 2-4 mm.
- FIG. 1 is a view of a submersible pump stage
- the stage of the submersible pump consists of an impeller 1 and a guide vane 2.
- the impeller consists of a front 3 and rear 4 cover discs, blades 5 and a sleeve 6.
- the guide vane likewise consists of a front 7 and rear 8 cover disks, blades 9 and a sleeve 10.
- FIG. 1 also shows the location of the "abrasive" holes 11 made in the end surface of the rear cover disk of the guiding device 2 and connecting the cavity between the surface of the front cover disk of the impeller of this stage and the surface of the rear cover disk of the guide device of the previous stage.
- the design and location of the “abrasive” holes in the guide apparatus are shown in FIG. 2.
- One of the options for washing the front pocket is the creation of special "abrasive" holes connecting the front pocket of the submersible pump stage with the guide apparatus of the previous submersible pump stage.
- the front pocket there is a recirculating movement of the liquid, which does not allow solid particles to accumulate, and the movement of the liquid through the "abrasive" holes carries solid particles from the cavity of the pocket into the guiding apparatus of the previous stage, from where they again enter the input of the pump stage.
- the pumping of fluid through the “abrasive” holes is due to the pressure differential between the front pocket of this stage and the diffuser of the previous stage.
- the pressure drop across the “abrasive” holes is approximately equal to the pressure head of the submersible pump.
- Abrasive holes serve to reduce the abrasive wear of the submersible pump stage, as they organize continuous liquid circulation through the front pocket of the stage and thereby prevent the accumulation of solid particles in it.
- holes are drilled through and through in the end surface of the rear cover disk of the guide vane in such a way as to ensure continuous flow of fluid from the front pocket into each interscapular channel of the guide vane.
- the diameter of the holes is selected in the range from 1 to 10 mm, preferably from 2 to 4 mm, depending on:
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201080059703.1A CN102713302B (zh) | 2009-12-30 | 2010-12-30 | 潜水泵级 |
US13/519,566 US20130058777A1 (en) | 2009-12-30 | 2010-12-30 | Submersible pump stage |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2009149028 | 2009-12-30 | ||
RU2009149028/06A RU2422679C1 (ru) | 2009-12-30 | 2009-12-30 | Ступень погружного насоса |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011081575A1 true WO2011081575A1 (ru) | 2011-07-07 |
Family
ID=44226695
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/RU2010/000805 WO2011081575A1 (ru) | 2009-12-30 | 2010-12-30 | Ступень погружного насоса |
Country Status (4)
Country | Link |
---|---|
US (1) | US20130058777A1 (ru) |
CN (1) | CN102713302B (ru) |
RU (1) | RU2422679C1 (ru) |
WO (1) | WO2011081575A1 (ru) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2670831C9 (ru) * | 2015-09-25 | 2018-11-29 | Анна Михайловна Стареева | Вихревая форсунка кочетова |
RU2735978C1 (ru) * | 2020-06-24 | 2020-11-11 | Игорь Олегович Стасюк | Ступень многоступенчатого лопастного насоса |
RU2754049C1 (ru) * | 2020-12-12 | 2021-08-25 | Игорь Олегович Стасюк | Ступень лопастного многоступенчатого насоса |
USD1026457S1 (en) * | 2021-02-04 | 2024-05-14 | Aerotest Limited | Cover for turbofan engine |
RU206628U1 (ru) * | 2021-03-06 | 2021-09-17 | Игорь Олегович Стасюк | Ступень лопастного многоступенчатого насоса диагонально-овального типа |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3539883A1 (de) * | 1985-09-18 | 1987-03-26 | Hermetic Pumpen Gmbh | Selbstansaugende kreiselpumpe |
GB2236696A (en) * | 1989-09-20 | 1991-04-17 | Central Electr Generat Board | A liquid separator comprising a centrifugal pump |
RU2303167C1 (ru) * | 2005-12-09 | 2007-07-20 | Закрытое Акционерное Общество "Новомет-Пермь" | Ступень погружного центробежного насоса для добычи нефти |
RU68613U1 (ru) * | 2007-04-20 | 2007-11-27 | Schlumberger Technology B.V. | Рабочее колесо ступени погружного насоса, направляющий аппарат ступени погружного насоса и ступень погружного насоса |
RU74674U1 (ru) * | 2008-01-17 | 2008-07-10 | "Центр Разработки Нефтедобывающего Оборудования (Црно)" | Погружной скважинный многоступенчатый центробежный насос и рабочее колесо насоса |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1642914A (en) * | 1926-07-03 | 1927-09-20 | Layne & Bowler Corp | Sandproof bearing |
GB929790A (en) * | 1960-07-05 | 1963-06-26 | Tait Mfg Co | Improvements in or relating to centrifugal pumps |
JPS4830102A (ru) * | 1971-08-21 | 1973-04-20 | ||
JPH11107987A (ja) * | 1997-10-02 | 1999-04-20 | Mitsubishi Heavy Ind Ltd | ポンプ |
JP2000230493A (ja) * | 1999-02-08 | 2000-08-22 | Mitsubishi Heavy Ind Ltd | ポンプ |
SE525412C2 (sv) * | 2003-10-20 | 2005-02-15 | Itt Mfg Enterprises Inc | Centrifugalpump |
CN2787890Y (zh) * | 2005-05-09 | 2006-06-14 | 杨双来 | 离心泥沙泵 |
FR2914028B1 (fr) * | 2007-03-20 | 2012-09-21 | Alstom Power Hydraulique | Machine hydraulique et procede de prevention de l'usure d'une telle machine |
US8801360B2 (en) * | 2009-09-09 | 2014-08-12 | Baker Hughes Incorporated | Centrifugal pump with thrust balance holes in diffuser |
-
2009
- 2009-12-30 RU RU2009149028/06A patent/RU2422679C1/ru not_active IP Right Cessation
-
2010
- 2010-12-30 WO PCT/RU2010/000805 patent/WO2011081575A1/ru active Application Filing
- 2010-12-30 CN CN201080059703.1A patent/CN102713302B/zh not_active Expired - Fee Related
- 2010-12-30 US US13/519,566 patent/US20130058777A1/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3539883A1 (de) * | 1985-09-18 | 1987-03-26 | Hermetic Pumpen Gmbh | Selbstansaugende kreiselpumpe |
GB2236696A (en) * | 1989-09-20 | 1991-04-17 | Central Electr Generat Board | A liquid separator comprising a centrifugal pump |
RU2303167C1 (ru) * | 2005-12-09 | 2007-07-20 | Закрытое Акционерное Общество "Новомет-Пермь" | Ступень погружного центробежного насоса для добычи нефти |
RU68613U1 (ru) * | 2007-04-20 | 2007-11-27 | Schlumberger Technology B.V. | Рабочее колесо ступени погружного насоса, направляющий аппарат ступени погружного насоса и ступень погружного насоса |
RU74674U1 (ru) * | 2008-01-17 | 2008-07-10 | "Центр Разработки Нефтедобывающего Оборудования (Црно)" | Погружной скважинный многоступенчатый центробежный насос и рабочее колесо насоса |
Also Published As
Publication number | Publication date |
---|---|
CN102713302A (zh) | 2012-10-03 |
CN102713302B (zh) | 2015-11-25 |
US20130058777A1 (en) | 2013-03-07 |
RU2422679C1 (ru) | 2011-06-27 |
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